[You are surprised to discover that Toneri actually has a Byakugan. Since Hinata and Hanabi's Byakugan are still intact, where did Toneri's Byakugan come from? The answer to the question is already very clear: At this moment, Ao of Kirigakure has already died, and his Main Family's Byakugan was taken by Toneri to use as a temporary replacement.]
The corner of Nojuro Ryun's mouth twitched. Originally, Toneri was already weak, a beginner of the Six Paths level who couldn't even beat Sage Art: Nine-Tails Naruto.
Now, with only one Byakugan, its level was certainly inferior to Hinata's and Hanabi's. Facing Naruto and Sasuke, who had just stepped down from the Six Paths level, wasn he just asking to be beaten?
The facts were just as you had predicted.
[Toneri's puppet army arrived, causing considerable casualties among the exhausted and battered Allied Shinobi Forces. However, Naruto and Sasuke soon rallied and began to fight. Using their remaining power, they subdued Toneri within just a few exchanges.]
[Just as you thought the war was about to end, Toneri activated the hidden purple Tenseigan. Terrifying beams began to sweep across all the shinobi in the ninja world, and countless ninjas died under this onslaught. The moment you saw the purple Tenseigan appear, you left with those you knew, thus avoiding being caught in the blast.]
[At the same time, Toneri announced that he had set the moon on a collision course with the earth, intending to destroy humanity. If they wanted him to stop his means, they only needed to hand over Hinata and Hanabi to him. In return, he promised to restore peace.]
[Pressure fell on you. You returned to the battlefield. Both Naruto and Sasuke disagreed with handing over Hinata and Hanabi, but they also wanted to know what this was all about. You mercilessly exposed Toneri's bluff, telling Naruto and Sasuke to hit him squarely in the head and that you would handle the follow-up issues.]
[Trusting you, Naruto and Sasuke launched a full-scale attack. The half-baked Toneri was quickly defeated, and the purple Tenseigan was destroyed by the Allied Shinobi Forces. You then led Naruto and Sasuke through the Earth-Moon passage, entered the moon, found the golden Tenseigan, and brought Hinata there to destroy it.]
[Toneri's Tenseigan was also removed by you, but the moment it was taken, it had already degenerated back into an ordinary Hyuga Main Family Byakugan.]
[Nevertheless, you ended up recovering this Byakugan, which could be considered a betrothal gift for your nominal father-in-law, Hiashi Hyuga.]
Seeing this, Nojuro Ryun breathed a sigh of relief.
He had genuinely worried that Toneri had some shocking scheme. Thankfully, Toneri's usable trump cards were limited to these, all of which had been basically displayed in the original storyline, and Nojuro Ryun knew the solution for each one.
As for why Toneri performed this way... it could only be said that his performance in the original storyline wasn't much stronger either.
He carried the grand goal of destroying the failed world created by the Sage of Six Paths, sacrificed his entire Branch Family, possessed the Otsutsuki clan bloodline, yet in actual combat, he neglected intelligence, failed to protect the secrets of the Tenseigan, and could even lose emotional control.
This led to the situation where, despite possessing a clearly Six Paths-level weapon like the Tenseigan, his actual fighting gave the impression that he wasn't even as good as Obito—and that assessment of Obito here doesn't even include the power of Dual Kamui.
Of course, even Toneri with only half a Tenseigan was not someone Nojuro Ryun could easily defeat.
But who could blame him, when Nojuro Ryun could still mobilize Naruto and Sasuke?
[Toneri, utterly despondent, retreated deep into the moon and hid, promising not to attack the earth again. You originally wanted to capture him and hand him over to Orochimaru for research, but Naruto said he had received an instruction from the Otsutsuki Sage to spare Toneri's life, as he would be needed to coordinate the moon's future orbit.]
[After thinking for a moment, you agreed to this decision. After all, the responsibility would solely rest with the Otsutsuki Sage. You decided to frequently visit Toneri in the future to consult him about the Byakugan and Tenseigan, thereby clarifying the evolutionary relationship between them.]
[As for whether Toneri would refuse or even prevent you from entering the moon, you had already devised a reason to solve this problem: You would say it was all for the sake of Hinata and Hanabi's future children, and he wouldn't want them to be neglected, would he?]
The corner of Nojuro Ryun's mouth twitched. The version of himself in the simulation was truly becoming more and more unscrupulous.
And his counterpart was that very Otsutsuki Toneri!
Although his aura as a Boss was inferior even to Obito's, he was still, after all, a descendant of the Otsutsuki clan who had reached the Six Paths level. Would he agree to being bullied like this by Nojuro Ryun?
Well... he actually did agree.
[Subsequent results proved your strategy successful. Although Otsutsuki Toneri was unwilling to see you, he still reluctantly answered your doubts, telling you the secrets related to the Byakugan, as well as another possibility for the Byakugan to evolve into the Tenseigan.]
Seeing this, Nojuro Ryun's heart raced. Could it actually work?
If so, then reaching the Six Paths level via the Tenseigan wasn't impossible!
Although the innate abilities of the Tenseigan upon reaching the Six Paths level might be slightly inferior to those of a Ten-Tails Jinchuriki reaching that level, as long as he could reach the Six Paths, Nojuro Ryun could try to develop and simulate more abilities.
There were also gaps between Six Paths level individuals, just as there is a gap between a complete good-for-nothing and a god within the Otsutsuki clan.
Nojuro Ryun's future enemies were the Otsutsuki clan, even the Otsutsuki God—although there were rumors that the Otsutsuki God was dead, the very fact that a god had died didn't it indicate a more serious problem?
Who killed the Otsutsuki God, or what exactly did he do?
Nojuro Ryun would live in the ninja world for a lifetime, and judging from subsequent stories, the Otsutsuki clan would begin to appear in bulk roughly twenty-odd years later. Nojuro Ryun had to at least find a way to deal with them within the simulations.
Thinking this, Nojuro Ryun couldn't wait to obtain the new method for evolving the Tenseigan.
[At the end of Konoha year 68, amidst the reconstruction of the ninja world, you married the girls.]
Seeing this, Nojuro Ryun chose to guide.
Normally, he would have children next, but this time Nojuro Ryun wanted to extend the simulation time. And Hinata, with her considerate and obedient personality, should agree to Nojuro Ryun's request.
[However, you and Hinata did not immediately have children. Instead, you continued your research on the Byakugan with Orochimaru, optimizing the method for cloning Byakugan.]
[You developed a mature strategy for differentiating human stem cells, then used life force to catalyze the Byakugan's development, and finally injected a trace of Hinata or Hanabi's mental energy into the Byakugan as a seed. The Byakugan developed in this way had already reached a low-purity level.]
[At the end of Konoha year 73, you had cultivated a full ten thousand low-purity Byakugan and had Hinata absorb the pupil power of all of them. Hinata's Byakugan finally changed, but it did not become a Tenseigan, because Hinata does not possess the Otsutsuki bloodline.]
[Nor did it become the "Jogan" from another evolutionary path you knew of. Instead, it transformed into a special intermediate form, which greatly enhanced the Byakugan's observational ability, allowing it to directly see through the flow and changes of any chakra, thereby identifying its weaknesses, and even discerning the ownership of chakra.]
[On this basis, it also greatly enhanced Hinata's ability to control chakra, maximizing her chakra nature transformation ability. She could easily wield a hundred-meter chakra fist to attack enemies, which also carried the special effects of the Gentle Fist.]
[Finally, it also possessed abilities such as chakra pressure, controlling puppets, and seeing through space-time ninjutsu. Ultimately, you and Hinata named this eye the "Cleavage Eye," meaning the eye that sees through everything and breaks everything.]
[In your view, its energy level should correspond to the Eternal Mangekyo. The Cleavage Eye pushed the Byakugan's functions to their limit,]
[even giving rise to some distinctly mutated super abilities, such as enabling Hinata's Gentle Fist to become like a giant's fist.]
[Unfortunately, it still couldn't reach the level of mastering Yin-Yang Release, and thus naturally couldn't rival the Rinnegan, let alone the higher-level Rinnegan with Tomoe. However, you were already satisfied with this result, because eyes of this level could be mass-produced on your side.]
[In Konoha year 74, Hanabi's eyes also evolved into the Cleavage Eye. And her eyes showed obvious differences from her sister's, being more aggressive. She could easily integrate Lightning Release into her Gentle Fist without interfering with its normal execution.]
[This gave you a deeper understanding of the Cleavage Eye. It seemed the ultimate form of the Cleavage Eye was to completely fuse all chakra natures into one, thereby unleashing powerful Taijutsu, similar to Kaguya Otsutsuki's Eighty Gods Vacuum Fist.]
Seeing this, Nojuro Ryun revealed a look of realization. So it was pointing in this direction.
This actually made it more reasonable.
Extreme observational ability and extreme chakra control—these were inherent abilities of the Byakugan. Combined with a Sage's body and long-trained Taijutsu, they could maximize the Byakugan's capabilities.
But currently, the Hyuga clan's understanding of the Byakugan had basically only left observational ability. Even the Gentle Fist prided itself on attacking weaknesses, completely forgetting that one could easily kill people with just physical body and chakra alone.